Orchard-heater.



J.. L. HAMILTON.

ORCHARD HEATER.

APPLICATION FILED r1212. 7, 1914.

Patented Jan. 26, 1915.

ATTI: RNEY.

INVENTDR \N'ITNEESES UNITED STATES JAMES I1. HAMILTON, OF GRAND JUNCTION, COLORADO, ASSIG-NOR TO HAMILTON ORCHARD HEATER COMPANY, OF WHEELING, WEST VIRGINIA, A CORPORATION OF WEST VIRGINIA.

ORCHARD-HEATER.

memes.

Specification of Letters Patent.

Patented Jan. 26, 1915.

Application filed February 7, 1914. Serial No. 817,102.

To all whom it may concern Be it known that 1, JAMES L. HAMILTON, a citizen of the United States of America, and resident of Grand Junction, county of Mesa, and State of Colorado, have invented certain new and useful Improvements in Orchard-Heaters, of which the following is a specification. I

This invention relates broadly to orchard heaters, and specifically to draft regulating means for such heaters.

The primary object of the invention is to provide a direct air passage to the stack from the usual damper-controlled opening through which air is supplied to the interior of the fuel receptacle, whereby adjustment of the damper simultaneously accomplishes both regulation of the air supply to the receptacle and regulation of the air supply to the stack.

A further object is to provide, in connection with an orchard heater wherein one or more depending draft tubes are employed for conducting air from a damper-controlled opening to the surface of the oil, an auxiliary draft passage'for conducting air directly from said opening to the stack, the air so conducted acting not only to increase the suction and thereby to facilitate combustion of oil within the receptacle, but also to facilitate the combustion within the stack of gases arising from the burning oil.

With these other objects in view, the invention resides in the features of construction, arrangement of parts and combinations of elements which will hereinafter be exemplified, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 is a top plan View of an orchard heater embodying my invention; Fig. 2 is a longitudinal section of the same on line 2-2, Fig. 1; Fig. 3 is a transverse section on the line 33, Fig. 1; and Figs. 4 and 5 are sectional views similar to those shown in Figs. 2 and 3, respectively, illustrating a modification.

Referring to said drawings, in which like designating characters distinguish like parts throughout the several views1 indicates the fuel receptacle, and 2 a detachable cover therefor, said cover having a stack 3 mounted thereon, as ordinarily. Removably fitted within a suitable draft opening 4 provided the upturned lateral edges of a shallow sheet-metal trough 8 which has its front end projected to a point inside the area encircled by the lower end of the stack and which extends rearward beyond the draft opening 4. An opening 9 which alines vertically with said opening 4 is provided in said trough for the accommodation of the draft tube 6, as shown in Figs. 2 and 3. A draft passage 10 is defined by said trough and the top of the cover, said passage being in open communication at its front end with the lower end of the stack, and having communication at itsrear end with the interior of the draft tube through one or more aperltures, as the perforations 11, provided in the atter.

As is obvious, part of the air admitted I through the damper-controlled opening 4: passes through the perforations 11 to the draft passage 10, through which it is conducted to the stack for facilitating combustion of the'gas'es arising from the burning oil in the receptacle. Adjustment of the damper 5 therefore accomplishes both the regulation of the volume of air admitted to the surface of the oil and of that supplied to the stack through the passage 10, a single adjustment thus sufiicing to regulate both supplies, which, as is apparent, correspondingly increase and decrease in a certain fixed ratio.

Referring now to the modification illustrated in Figs. 4 and 5, the draft tube is suspended from the bottom of the trough instead of from the cover, thus allowing direct communication between the opening l and the passage 10 as well as between said opening and said draft tube. Here, too, a single adjustment regulates the volume ofair admitted to the interior of the receptacle and that supplied to the stack.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. An orchard heater comprising an oil receptacle, 'a cover forsaid receptacle, a

stack mounted on said cover, a draft opening in the top of said cover, a trough attached to the under side of said cover intermediate the ends of the latter and having communication at one end with said draft opening and at its opposite end with the interior of the stack whereby a draft passage is constituted, said trough having an opening therein adjacent to the draft opening in the cover.

2. An orchard heater comprising an oil receptacle, a cover for said receptacle, a stack mounted on said cover, a draft opening in the top of said cover, a trough attached to the under side of said cover intermediate the ends of the latter and having communication at one end with said draft opening and at its opposite end with the interior of the stack whereby a draft passage is constituted, said trough having an opening therein adjacent to the draft opening in the cover, and means for regulating the volume of air admitted through said draft opening.

3. An orchard heater comprising an oil receptacle, a cover for said receptacle, a stack mounted on said cover and communieating directly with said receptacle, said cover having a draft opening in the top thereof laterally of said stack, a trough attached to the under side of said cover, said trough being in open communication at opposite ends with said draft opening and the interior of the stack and constituting a draft passage, and means for conducting air to the interior of the receptacle.

4. An orchard heater comprising an oil receptacle, a cover therefor, a stack mounted on said cover and communicating through the latter directly with the interior of said receptacle, adjustable means supplying air to said receptacle, and means permanently attached to said cover for diverting part of said air supply directly to the lower end of said stack.

5. An orchard heater comprising an oil receptacle, a cover therefor, a stack mounted on said cover and communicating through the latter with the interior of said receptacle, said cover being provided with a draft opening therein at a point laterally of the stack, through which air is supplied to the interior of the receptacle, a trough mounted on the under side of said cover and having communication with said draft opening, said trough also communicating with said stack and constituting a draft passage between said opening and said stack, and adjustable means for regulating the draft through said opening. I

6. An orchard heater comprising an oil receptacle, a cover therefor, a stack mounted on said cover and communicating through the latter with the interior of said receptacle, a damper-controlled opening in said cover for supplying air to the interior of the receptacle, and means attached to said cover for conducting a portion of the air admitted through said opening directly to the lower end of the stack.

, 7. An orchard heater comprising an oil receptacle, a cover therefor, a stack mounted on said cover and communicating through the latter with the interior of said receptacle, a damper-controlled opening in said cover for supplying air to the interior of the receptacle, and a trough disposed in fixed relation to said cover and constituting a passage through which a portion of the air admitted through said opening is diverted directly to the lower end of the stack.

8. An orchard heater comprising an oil receptacle, a cover therefor, a stack mounted on said cover, a trough disposed on the under side of said cover to form a draft passage, said passage being in open communication at one end with the lower end of said stack, vertically alined openings passage, said passage being in open com-' munication at one end With the lower end of said stack, vertically alined openings provided in said cover'and said trough, a draft tube projected into the receptacle through said openings and suspended'from said cover, said tube having apertures therein through which air is admitted to said passage, and an adjustable damper for regulating the volume of air admitted to said tube.

10. In an orchard heater, the combination with a receptacle cover. having a stack mounted thereon and a draft opening therein, of a trough fixed on the under side of said cover and having communication at opposite ends with said opening and said stack and constituting a passage through which a portion of the air admitted through the former is conducted directly to the latter.

JAMES L. HAMILTON.

Witnesses Nn'r'rm METGALFE, MRS. M. L. PoosER. 

